i have just come back from my selection and got a deffered b, which means i just need to redo the jerry cans and bag lift again can anyone tell me that defer does not mean an automatic fail as i passed the rest thanks

The gym is a controlled environment. The weights are easy to contol and manipulate. Try compound moves like the clean and jerk to build strength throughout your body. Ask them if they have any power bags like those used in the tests and practice with them.